Elevator for beton-mixing machines.



A. SGHWYZER. ELEVATOR FOB BETON MIXING MACHINES.

APPLICATIOE EILBDJBU. 12, 1905.

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ELEVATOR FOR BETON MIXING MACHINES. APPLIOATION FILED D2012, 1905.

Patented Mar. 1.6, 1909.

2 SHEETS-SHEET 2.

UNITED STATES P e TENT orrron ALBERT scnwYzER, or BALsrHAnjswITzERLANn,AssieNoR TO GESELLSUHAFT DER tunw. VON 'ROLLSCHENEISENWERKE, orGERLAFINGEN, SWITZERLAND.

. ELEVATOR FOR BETON- MIXING MAGHINESL Specification of Letters Patent.

Patented March 16, 1909.

To all whom it may camera."

Be it known that'I, ALBERT SGHWYZER, cltizen of Switzerland, residing.at. Balstha'l,

Elevators for Beton-Mixing Machines, "of

which the following is a specification.

The elevators hitherto used in portable beton mixing machines havebeenfound defective lnasmuch as' when adapted to raise the material ratherhigh-they required taking down to facilitate the movi-ngabout 'ofthemachine.

The object ofthis invention is to overcome said defect. I attain thisobject by the mechanism illustrated in the accompanying two sheets ofdrawings which show one em- .bodiment of my invention and in which iFigure 1 is a side view and Fig. 2 asectional front view. Fig; 3 is aside view and Fig; 4 a longitudinal section of the clutch of.

3 thefwindin shaft of the machineshown on emp oyed the elevator of anenlarge scale".

Similar letters refer to similar parts U on the frame as furnishedwithwheelsfls the heton mixing machine. Y

a is the main shaft from-which by means of a pair of bevel wheels 0, dand clutch box 6, e rotary motion. is transmitted to the shaft 6.

- The wheel d is mounted loosely u on the shaft b and the power istransmitte to the shaft b by means of a disengageable clutch box 0.

- By means of the wire ropes m assing over.

the guide pulleys It, the elevator ox f is connected with the pulleys hsecured upon the shaft 6, thepulleys h rotating in one dlrection windingthe box f up and rotating in the other direction lowering the same. Tothe top and the bottom of the elevator box f are respectively securedthe pulleys i,

i, the former belng adapted to run in and the lattefupon the guide railsis, k, the. upper ends of which are bent-to cause the box j whenarriving at the top to tilt and empty, the pulley i .then leaving therails k, 1.7, see

Fig 1. I

o the cross piece at are fulcrumed at sand 2' respectively the levers 7'and Z, the former connecting the lever Z with the clutch membere. To oneside of the machine frame as is fulcrumed the lever lt, by a rod 0connected to the rear endof the lever Z.

I When it'is desired to raise the boxf, the lever'l is ,lifted,-whichcauses the lever 7' to bring the clutch member e in gear with e on thebevel Wheel d, the shaft 12 to be rotated and the'pulleys h to wind onthe wire ropes m.

When the boxf has beenraised to its desired hei ht, the clutch pulleyiis timed to contact wit and raise the lever n elevating the rod 0 andrespective end of the lever-Z and thereby throwing the clutch membereout of gear with e and stoppingthe travel of the box.

" Upon the shaft 6 is mounted loosely turnable a brake disk w whichtogether with a disk 1) secured upon the shaft b form a silent sto pinggear. For this purpose the interior of t e rim of the disk w has ratchetteeth and to its boss is clamped a ring w loosely turnframe a: of theelevator is suitably fulcrumed a two rods 10 to two hand lever t havinga weight p and at one end secured a band y 1 passing around the brakedisk w and the other end secured to the beam ;x' of the frame of theelevator, the said weight kee ing. the said band always at a tension anthe brake disk thushaving the tendency of remaining at rest.

The sto ing gear describedoperates as follows: hen raising the elevatorbox theshaft b and consequently the disk v isrotated in the directionthe opposite of thearrow shown in Fig. 3, thelrin w" .having thetendency to stop with the pawls 'w are-drawn inward by the rods .11;

the box to be retained in its tilted position.

The box is lowered by releasing the brake lever t.

. To facilitate the machine being moved rake disk, the

and thus'are brought out of gear with the teeth of the disk 1) in'order,to render the stopping apparatus silent, that is to say, to pre- 4 Ivent t about, the lower arts of the rails is arehinged l bent endscausing the box to tilt automaticat u to permit 0 being raised into theosially in its highest position, and means actution shown in dottedlines in Fig. 1, in w 'ch ated by the said box when in its highestposithey are held secure by means of flat bars g i tion for step ing thesaid box raising means, and bolts. 7 all combine substantially as andfor the What I claim as my invention and desire purpose set forth. tosecure by Letters Patent, is 7 I In testimony whereof I have signed myIn an elevator for beton mixing machines, 3 name to this specificationin the presence of -ide rails bent at their upper ends, .a beton twosubscribing witnesses.

- ALB. SOHWYZER.

ox, pulleys respectively secured to the bottom and the top of and meansfor raising and Z lowering the said box on the said rails, .theWitnesses: said bottom pulleys running upon and the 1 E. BAUMANN,

said toppulleys in the said railsand the said ALFRED C. Pnvls.

